CN1930828A - Mobile communication with non-permissive wireless switch-in network - Google Patents
Mobile communication with non-permissive wireless switch-in network Download PDFInfo
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- CN1930828A CN1930828A CNA200480042662XA CN200480042662A CN1930828A CN 1930828 A CN1930828 A CN 1930828A CN A200480042662X A CNA200480042662X A CN A200480042662XA CN 200480042662 A CN200480042662 A CN 200480042662A CN 1930828 A CN1930828 A CN 1930828A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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Abstract
A mobile telecommunications network includes a core network portion, a first access network and a second access network. The first access network comprises a plurality of base stations adapted to communicate with mobile stations via a licensed radio interface and with the core network portion. The second access network comprises a plurality of access points each defining a mini-cell and adapted to communicate with mobile stations over an unlicensed-radio interface and an access network controller adapted to communicate with the core network portion and with the plurality of access points. The second access network is further adapted to set up a radio link with a mobile station that is entering a mini-cell and conducting an active call with the first access network and to communicate a cell identifier to the mobile station. The cell identifier identifies at least one mini-cell of the second access network to the core network portion for handover. At least one base station of the first access network is adapted to receive a handover proposal message from the mobile station containing the cell identifier and to communicate the cell identifier to the core network portion in a message indicating that handover is required.
Description
Invention field
The present invention relates to mobile communication in conjunction with public mobile access network and non-permission access network.The present invention is specifically related to be connected the transfer between public mobile network and the non-permission access network.
Background technology
In any mobile communication system such as the GSM network, when mobile radio station in different overlay areas or sub-district when moving, the activation of implementing between mobile radio station and base station is called out and need be switched (hand over) to different base stations.According to how defining each sub-district, switching can require simply by different base station transceiver BTS, by different base station controller BSC or the calling by different mobile services switching centre MSC heavy-route activation.When capacity problem takes place in any one sub-district, also may need to switch.
In network, switch the operation and maintenance behavior that relates to some, for example define the base station controller BSC and the mobile services switching centre MSC of adjacent cell and control sub-district, defining which cell frequency should measuredly with what threshold value should be used to initiate to switch.In conventional GSM network, base station controller BSC sends to mobile radio station and wants measured list of frequency.May send two tabulations, first tabulation is used to idle pulley, for example when mobile radio station during in roaming, and second enable mode that is used for when calling is being carried out.This secondary series table definition mobile radio station should measure what frequency and report.These tabulations comprise a class value, and this value is counted ARFCN with reference to the absolute radio-frequency channel of abutting subdistrict.Except these frequency channels numbers, base station controller BSC is also known the Base transceiver Station Identity Code BSIC of all of its neighbor sub-district.Moving station measuring is reported these measurements by the frequency of these number of channel definition and to base station controller.In fact, mobile radio station is only reported six best measured values, and for mobile radio station can be with it synchronously and those cell frequencies that receive the identification code (BSIC) relevant subsequently with the base station report.The measurement report that sends it back base station controller BSC by mobile radio station MS comprises following content: the reference that ARFCN is counted in absolute radio-frequency channel, the indication of the downstream signal intensity of Base transceiver Station Identity Code (BSIC) and reception.In fact, report does not specify accurate absolute radio-frequency channel to count ARFCN but mentioned should numeral position occupied in measuring tabulation.Based on this report, which sub-district is base station controller BSC determine whether to need to switch and switch to.The initiation of switching is carried out according to standard GSM mechanism for each operator (vendor).Particularly, the message that sends to the mobile services switching centre MSC that is connected to base station controller BSC by base station controller has been indicated needs to switch.This message has comprised cell identifier list, this tabulation comprises one or more sub-districts global identifier (cell global identifier) CGI, its be the little area definition that switches to its request mobile country code, mobile network code, MNC, location area codes and cell identifier.Sub-district global identifier CGI uses the Base transceiver Station Identity Code BSIC that obtains for this sub-district to count ARFCN with absolute radio-frequency channel by base station controller to obtain from tabulation.Utilize this sub-district global identifier CGI, mobile services switching centre MSC can determine that other which MSC handle the sub-district by the CGI value defined.
Can use the access network of non-unlicensed radio interface of low-power and mobile station communicate to expand conventional cellular network by comprising.These access networks are designed to use with the public mobile network's of standard core parts.Make up access network so that public mobile network's the core cell such as moving exchanging center MSC is regarded non-permissive wireless switch-in network as a conventional base station controller BSC.Such access network and in european patent application No.EP-A-1 207 708, described with the mobile radio station that this access network uses.Access network comprises access controller and a plurality of low-power access point that is connected to core network.Access point is connected to access controller by broadband packet-switched network.The low-power of non-unlicensed radio interface and the low scope that causes mean can relatively closely provide several such access networks, and for example every layer of office building provides an access network.Use the broadband network existed to connect the installation that access point and access controller greatly facilitate access network, for example allow the user that access network is installed in the family of oneself voluntarily.Suitable non-unlicensed radio form comprises that numeral strengthens radio communication (DECT:digital enhancedcordless telecommunication), WLAN and bluetooth.Can mean that the user only needs a phone can adapt to all environment at the adaptive mobile handsets that standard air interface (for example Um Interface) can be operated again on non-unlicensed radio interface.
When such as GSM, problem when comprising one or more non-permissive wireless switch-in network among the conventional public permission mobile network of UMTS or CDMA2000 network is, switching from public permission mobile network to non-permissive wireless switch-in network has increased the necessary operation and maintenance behavior that needs greatly, has reached unacceptable high level in some cases.According to the number of the non-permissive wireless switch-in network that exists, the quantity sum of access point can reach thousands of or up to ten thousand.These access points of definition are tasks time-consuming and with high costs in public permission mobile network's correlation unit.In addition, several non-unlicensed radio access points can be arranged in same public permission mobile network's sub-district.The frequency number that needs in the sub-district except the sub-district adjacent with public permission mobile network to measure can be greatly to not being included in the general measure report.The access point separately of non-permissive wireless switch-in network is installed the quantity and the position that mean these access points at an easy rate and may constantly be changed in addition.The each change needs to consider that the reposition of access point upgrades public permission mobile network's configuration.
Summary of the invention
Therefore, the purpose of this invention is to provide processing from such as GSM, the conventional public permission mobile network of UTMS or CDMA2000 and so on is to the system of the switching of the non-permissive wireless switch-in network that is connected to this general networks.
This purpose is at the mobile telecom network according to the back claim, and mobile radio station and execution activate in the method for calling out the switching between permissive wireless switch-in network and non-permissive wireless switch-in network and realize.
Especially, mobile telecom network according to the present invention comprises: core network part, at least one first access network and at least one second access network part.First access network partly comprises a plurality of base stations, is suitable for partly communicating by letter with mobile station communicate and with core network through the unlicensed radio interface.Second access network comprises a plurality of access points and access network controller, and each access point has defined Microcell and has been suitable for communicating by letter on non-unlicensed radio interface with the mobile radio station that is positioned at each Microcell; Access network controller is suitable for communicating by letter on predetermined permission mobile network interface with the core network part and being connected with a plurality of access points.Second access network be further adapted for set up with enter Microcell and at the radio link of carrying out the mobile radio station of calling out with the activation of first access network, and be suitable for cell identifier is transferred to mobile radio station.Cell identifier partly identifies at least one Microcell of second access network to core network and calls out so that make it possible to switch activation from first access network to second access network.At least one base station of first access network is suitable for receiving the message that comprises cell identifier from mobile radio station, and in the message that indication needs to switch cell identifier is sent to the core network part.
By using mobile radio station will indicate the cell identifier of the Microcell of the non-permissive wireless switch-in network that will switch to send to the base station of conventional cellular network, when installing, non-permissive wireless switch-in network do not need the access point that is configured in the base station is identified.Cell identifier only need partly dispose at core network, and this has simplified the installation necessary operations and the maintenance function of new non-permission access network greatly.In addition, the displacement of the access point in the non-permissive wireless switch-in network, adding and removing does not need further to revise public permission cellular network and just can carry out.
Preferably, cell identifier is identical for all Microcells of non-permissive wireless switch-in network.This has further reduced the configuration overhead that needs by the number that limits the identifier that must be configured in the core network part.
Accompanying drawing is described
More further purpose of the present invention and advantage will become obvious by with reference to the accompanying drawings preferred embodiment being described.In the accompanying drawings:
Fig. 1 has schematically described a part with GSM network of non-permissive wireless switch-in network,
Fig. 2 has schematically described the non-permissive wireless switch-in network of Fig. 1,
Fig. 3 has illustrated that with a calling from a public mobile network, for example GSM switches to the signaling sequence of non-permissive wireless switch-in network.
The detailed description of accompanying drawing
Fig. 1 has schematically described the part of conventional GSM network.This network is divided into core network part 20 basically and inserts part 10.The unit of core network shown in the drawings comprises mobile switching centre or MSC 202, relevant attaching position register HLR 201 and Visited Location Registor VLR 204.The effect and the structure of these conventional GSM construction units are known to those skilled in the art, no longer are described in detail here.Core network is also supported GPRS (GPRS), and has also described Serving GPRS Support Node (SGSN) 203 for this purpose.Though do not demonstrate among the figure, those skilled in the art can understand the core network part can comprise the cable network that is linked into other mobile networks and for example ISDN and PSTN network by one or more gateway nodes, for example the grouping of in-house network, extranets and internet and Circuit-switched Packet Data Network.
Insert part and be made of base station sub-system BSS 10 basically, one of them has been described in Fig. 1, and it is communicated by letter with SGSN 203 with MSC 202 respectively in core network part 20 with Gb Interface by the fixed standard A of definition.Each base station sub-system BSS 10 comprises a base station controller BSC 103, and it is by the A of definition
BisWave point 102 is communicated by letter with one or more base station transceiver station BTS 101.Base station transceiver station BTS 101 is at GSM standard U
mCommunicate by letter with mobile radio station MS 1 on the radio air interfaces.Should be understood that when BTS 101 and BSC 103 were described to be formed on a unique entity among the BSS 10, BSC 103 often was independent of BTS 101 and even is arranged in mobile services switching centre MSC 202.
Except the standard access network that provided by BSS 10 part, network shown in Figure 1 further is included in the improvement access network part 30 shown in the latter half of this figure.This part will be described to the non-permissive wireless switch-in network part hereinafter.
The parts of forming non-permissive wireless switch-in network part 30 also make mobile radio station 1 to insert GSM core network part via the non-unlicensed radio interface X shown in the four-headed arrow among Fig. 1 31, and can insert other communication networks thus.The operator that do not need to refer to move the mobile network by non-unlicensed radio obtains any radio protocol of licence from appropriate managerial mechanism.Usually, so non-unlicensed radio technology must be lower powered, and causes thus comparing and having limited scope with the mobile radio service of permission.The battery time that this means mobile radio station will be longer.In addition, because scope is little,, thereby provide better voice quality so non-unlicensed radio can be a broadband radio also.Radio interface can use any suitable non-unlicensed radio agreement, and for example WLAN agreement or numeral strengthen radio communication (DECT).But preferably use bluetooth radio, it has than higher bandwidth of common public mobile network's radio and lower power consumption.
Bluetooth standard has stipulated to be used for the bi-directional digital wireless current source road that short distance connects between the distinct device.Equipment has the transceiver that sends and receive on about 2.45GHz frequency band.This frequency band all is available in the whole world, according to different and some variation of country.Except data, also have maximum three voice channels to use.Each equipment has the 48 unique bit addresses from IEEE 802 standards.Embedded encryption and checking also are available.
Be called as this locality or home base station (HBS) 301 to the access point that is suitable for the access network part 30 by blue tooth interface communication.Only described a home base station HBS 301 among Fig. 1, but should be appreciated that hundreds of such unit can be included in the non-permissive wireless switch-in network 30.The radio link protocol of this cell processing and mobile radio station MS 1, and comprise to define the radio transceiver of sub-district with mode like the class of operation of common GSM base station transceiver BTS 103.All home base station HBS 301 are controlled by home base station controller HBSC 303, it is communicated by letter with mobile services switching centre MSC202 on GSM standard A interface and also communicates by letter with Serving GPRS Support Node SGSN 203 on the standard Gb Interface, if available in the core network part.Home base station controller HBSC 303 provides being connected between MSC 202 or SGSN 203 and the mobile radio station 1.The adding function of home base station HBS 301 and home base station controller HBSC303 is imitateed the operation of BSS 10 to SGSN 203 and MSC 202.In other words, when unit from core network 20, when for example mobile services switching centre (MSC) 202 and Serving GPRS Support Node (SGSN) 203 were seen, the access network part of being made up of home base station HBS 301 and home base station controller HBSC 303 30 looked and looks like common access network part 10.
Operate in application program on the mobile radio station MS 1 on public mobile network's radio interface top and also operate in bluetooth radio top between mobile radio station 1 and the home base station HBS 301.
Provided by packet-switched broadband network by the home base station HBS 301 of Y appointment and the interface between the home base station controller HBSC 303 in Fig. 1, this network can be a fixed network.Home base station HBS301 is predetermined will to be that the user for example can buy and be installed in family or office environment and so on desired locations to obtain the mini-plant to mobile network's fixedly access.Yet they also can be installed in the traffic hotspots by operator.In order to reduce the installation cost of operator's part, the interface between home base station HBS 301 and the home base station controller HBSC 303 preferably is provided by the connection that is provided by the network 302 that has existed.Suitable network can comprise based on ADSL, Ethernet, those networks of LMDS or the like.The availability that connects the user to the ownership of these networks increases day by day.Though be not presented among Fig. 1, home base station HBS 301 will be connected to the network terminal of permitting access network 302, home base station controller HBSC 303 also can be connected to the edge router ER of network 302 simultaneously, this edge router also is linked to other networks with network 302, for example in-house network and internet.Internet protocol IP is used for home base station HBS301 on the network 302 and the communication between the home base station controller HBSC 303, implements to be independent of the transfer of data of network type.Link between home base station HBS 301 and the home base station controller HBSC 303 is preferably opened always, so this connection need not to preserve channel and available always.Although network 302 is IP-based network preferably, also can use network based on ATM.Especially when the DSL technology was used for this network, they can directly be used in above the ATM layer, because they are based on ATM's.Naturally, also be used for transmitting IP, serve as basic layer based on the network of ATM.
The port of the suitable modulator-demodulator by being inserted into ADSL for example or CATV modulator-demodulator and so on is installed home base station HBS 301 so that insert fixed network 302.This port is related with the in-house network of bridge joint on the IP layer or route.Therefore, use standard agreement, for example IP, DHCP, DNS and similar agreement.
Home base station HBS 301 can be with the special-purpose access point of accomplishing non-permissive wireless switch-in network.In this case, home base station HBS 301 can be on non-unlicensed radio interface X with mobile radio station 10 or on Broadband Network Interface Y with access controller 303 independent communications.Home base station HBS 301 uses standard agreements and function to determine which home base station controller HBSC 303 it should be connected to, and sets up and being connected of this home base station controller HBSC 303.
In alternative embodiment, when when the angle of access controller 303 and mobile radio station 10 is seen, home base station HBS 301 is as the access point of substantial transparent.In other words, this access point is at the IP layer or more relay all information that send from mobile radio station 10 or access controller on the upper strata.It implements the conversion between OSI Reference Model layer 1 and 2 non-unlicensed radios and the land Access Layer business simply.Therefore, mobile radio station 10 set up with access controller 303 between be connected and need not access point is identified as node in the connection.Similarly, access controller 303 can directly connect with mobile radio station 1.
Base station 101 and 301 in common access network 10 parts and non-permissive wireless switch-in network part 30 has defined the overlay area of being described by hexagonal cell 104,304 in Fig. 1.Although the relative size of these sub-districts is coarse in the drawings, following this point remains clearly, and the covering of promptly common BTS 101 is far longer than lower powered relatively HBS 301.For this reason, as long as and because have to the port of the fixed broadband network that is connected to HBSC 303, HBS 301 just can install, so can be positioned at 104 centres, sub-district of common BTS 101 by one or more Microcells 304 of HBS 301 generations.
In common GSM network, switch call is by realizing to the access network 10 of current connection and the sign of core network part 20 notice abutting subdistricts by means of calling out global identity symbol CGI between abutting subdistrict, CGI comprises mobile country code, mobile network code, MNC, location area codes and cell identifier, and also comprise the information of controlling these sub-districts about which BSC 103 and MSC 202 (or SGSN 203, if available on network).BSC 103 must send the absolute radio-frequency channel number (ARFCN) of distributing to all of its neighbor sub-district to connected mobile radio station 1, thereby mobile radio station 1 can be measured relevant frequency and accuse the strongest frequency to repayment.Except number of channel ARFCN, it is unique Base transceiver Station Identity Code BSIC for the base station that sends on the channel frequency of sign that this message also is included in this zone.The introducing of a lot of Microcells 304 that form along with installation, this operation and maintenance behavior become very complicated and trouble by non-permissive wireless switch-in network 30, especially when the position of Microcell can be along with the past of time when change.
According to the present invention, be not to distribute unique cell identifier, base station identifier and frequency channels number, but all Microcells 304 in the identical non-permissive wireless switch-in network are identified the network to GSM with identical sign to each Microcell 304.In fact, whole non-permissive wireless switch-in network 30 or more suitably be that the home base station controller HBSC 303 of this access network of control is assigned with single unique cell ID.Cell ID has the form of core network identification that can licensed mobile network.When this core network was GSM, cell ID preferably equaled to be used in the cellular global identity symbol CGI in the common GSM network.For illustrative purposes, cell identifier is called as HBSC-CGI.Surpass one non-permissive wireless switch-in network if exist, each will have single related cell identifier HBSC-CGI.
What further deviate from switching in the ordinary license cellular radio network is that the single subdistrict identifier HBSC-CGI that is used for each non-permissive wireless switch-in network only is configured in the node of core network.Do not need to dispose identity among the base station sub-system BSS 10 in abutting connection with non-unlicensed radio sub-district 304.Yet these unit and mobile radio station MS 1 have the additional function that common mobile network does not have.Particularly, in the time can at first connecting, receive the cell identifier HBSC-CGI that distributes via the mobile radio station 1 of non-permissive wireless switch-in network communication with access network 30.Then, this information is sent to the base station sub-system BSS 10 that handle to activate calls out, it so that can transmit this identifier HBSC-CGI as the Target cell that is used to switch again.Core network part 10 is identified as the sub-district of being handled by home base station controller HBSC 303 with cell identifier HBSC-CGI, and handoff request is indicated to this node.
Fig. 2 has described when the activation calling of the transmission between common base station sub-system BSS 10 and mobile radio station 1 is switched to the home base station HBS 301 of non-permissive wireless switch-in network, at mobile radio station MS 1, base station sub-system BSS 10, mobile services switching centre MSC 202, the signaling sequence that transmits between home base station controller HBSC 303 and the special-purpose home base station HBS 301.
In Fig. 2, each unit that is included in the signaling is described on the top of figure.Mobile radio station MS has described twice at the two ends of figure.The mobile radio station MS-Um on the left side represents standard GSM Um Interface and the mobile radio station MS-X on the right represents the non-unlicensed radio interface or the X-interface of identical mobile radio station.With reference now to the incident 1 of Fig. 2,, supposes that GSM calls out between mobile radio station MS and base station sub-system BSS, to set up via the standard Um Interface.In incident 2, base station sub-system BSS transmitting system information is given mobile radio station MS, for example in system information type 5 message.This comprises the list of frequency that mobile radio station MS should measure for the purpose of switching.This is measured tabulation and comprises that the absolute radio-frequency channel of distributing to non-permissive wireless switch-in network counts ARFCN.Measurement report in 3 pairs of listed frequencies of incident sends to base station sub-system BSS from mobile radio station MS.In incident 4, mobile radio station enters overlay area or the Microcell of the home base station HBS of non-permissive wireless switch-in network.The non-unlicensed radio interface of mobile station via X sets up the radio link with home base station HBS.Then, in incident 5, mobile radio station MS can be from comprising the home base station HBS receiving system information of non-permissive wireless switch-in network identifier HBSC-CGI.This information preferably sends in system information 3-type message.In incident 6, in handoff advice message, this identifier is sent to base station sub-system BSS by mobile radio station MS.In incident 7, base station sub-system BSS by send " needing to switch " (HANDOVER-REQUIRED) message (GSM08.08) the non-unlicensed radio of propagating for sign by the mobile radio station MS mobile services switching centre MCS that inserts sign HBSC-CGI trigger switching.In incident 8, mobile services switching centre MSC sends " needing to switch " message and gives home base station controller HBSC.If handover success, then except cell identifier (CGI), this message also comprises the circuit identification code (CIC) that will be used to the A-interface.Circuit identification code CIC is configured in the core network relevant with HBSC-CGI.When receiving this message, home base station controller HBSC stores necessary local resource and distributes and switches reference number (HO reference) to this switching.Should notice that home base station controller HBSC does not know that in this stage this handoff request relates to which home base station HBS and relevant Microcell.In incident 9, " switching command " that home base station controller HBSC establishment needs be message (HANDOVERCOMMAND), and this message is about comprising the radio resource layer (RR) that switches reference number (HO REFERENCE).Then, this " switching command " message is included in the handover acknowledge message (HANDOVER-REQUEST-ACK) that sends to mobile services switching centre MSC.Utilization sends to " switching command " message of base station sub-system BSS and sends to the message that " switching command " acknowledgement messaging of mobile radio station MS need switch in incident 11 in incident 10.
Then, mobile radio station is set up the essential connection to home base station controller HBSC by home base station HBS.This realizes by sending suitable message in incident 12, is called as " nonpermissive switching access ".This message comprises switches reference number (HO reference).Set up through after the connection of fixed broadband network in incident 13, send to switch at incident 14 home base stations then and insert message, it comprises that switching reference number (HO with reference to) is connected other required data with all, for example is used to pass the IP related data of the connection of broadband network 302.This comprises, for example, voice or packet are with IP address and the udp port of the home base station HBS that is sent to.
When angelica base station controller HBSC received this message, it can use and switch reference number (HO with reference to) this message is associated with previous handoff request.Then, home base station controller HBSC uses the CIC value that is transferred to it in advance, and the circuit that distributes is connected with the IP resource through the A-interface.Similarly, in incident 15, home base station controller HBSC sends essential IP information to home base station HBS, and for example voice IP address and UDP-port are so that set up the double-directional speech passage.After this, in incident 16, home base station controller HBSC the middle transmission of replying of successful switch " switching is finished " (HANDOVERCOMPLETE) message give mobile services switching centre MSC.Mobile services switching centre MSC can be released in the old voice channel that uses among the base station sub-system BSS then.
Fig. 3 has described the signaling of the alternative embodiment of non-permissive wireless switch-in network 30, and home base station HBS is the transparent access point with function of the special-purpose home base station HBS that is transferred to home base station controller and/or mobile radio station in this network.In this embodiment, mobile radio station is directly communicated by letter on non-unlicensed radio interface and broadband network via access point with home base station controller HBSC 303.With reference now to Fig. 3,, the step that communication is relevant between mobile radio station MS-X and home base station HBS identical with embodiment among Fig. 2 in steps.Particularly, incident 4 comprises the first incident 4a, and mobile radio station MS and home base station HBS set up the non-unlicensed radio link and the second incident 4b during this incident, is connected to home base station controller HBSC on the broadband IP network 302 at mobile radio station during this incident.In incident 12, mobile radio station MS directly sets up signaling via non-unlicensed radio interface X and broadband network 302 with home base station controller HBSC.In incident 13, Y-switches access (HO-REFERENCE) and sends to home base station controller HBSC by mobile radio station, and the voice path between incident 14 mobile radio station MS and home base station controller HBSC is established.As first embodiment, in incident 15, " switching is finished " message is sent out then.
In the signaling of two embodiment, can be new message type or replacedly be the change of existing type of message by " handoff advice " message that mobile radio station MS sends to base station sub-system BSS in incident 6, for example the measurement report message that sends in incident 3.Under any situation, base station sub-system BSS must receive and respond this particular message.In " needing to switch " message that incident 7 sends is the GSM message of standard, therefore there is no need to revise for the communication between base station sub-system BSS and the core network part.
Can receive the measurement report of the modification of special " handoff advice " message or replacement canonical measure report message in order to ensure base station sub-system BSS; support the base station sub-system BSS of this function preferably in the system information type 5 that sends to mobile radio station (System Information Type 5) message, to point out this ability, for example the incident in Fig. 2 and 32.
The further modification of base station sub-system BSS has reduced expending of unnecessary core-network resources, for each can support the base station sub-system of this function kept by mobile radio station MS suggestion but do not have the blacklist of the Target cell of success to the switching of this sub-district.This tabulation is stored in the memory in the base station controller (103) and can be visited by the processor in the base station controller when receiving " handoff advice " message.If the identifier HBSC-CGI of Target cell will be added to this tabulation to the handoff failure of Target cell repeatedly.Any trial again of being asked to switch to such sub-district by mobile radio station MS will be rejected.
The detailed description of above-mentioned switching only is used as the GSM network common public mobile network.But it will be understood by those skilled in the art that from other common public mobile networks for example UMTS or CDMA2000 can realize with similar method to the switching of non-permissive wireless switch-in network.In all cases, cell identifier should be selected as having the form that core network element can be discerned, and it is dispensable therefore to revise these unit.
Claims (15)
1, a kind of mobile telecom network, comprise core network part (20), at least one first access network (10), with at least one second access network part (30), wherein said first access network partly comprises a plurality of base stations (10), be suitable on the unlicensed radio interface, communicating by letter and communicating by letter with described core network part (20) with mobile radio station (1), and described second access network comprises a plurality of access points (301), and each has defined Microcell and has been suitable for and is arranged in separately the mobile radio station of Microcell (1) and communicates by letter on non-unlicensed radio interface (31);
Access network controller (303) is suitable for communicating by letter on predetermined permission mobile network interface with described core network part and being connected with described a plurality of access points (301),
It is characterized in that: described second access network (30) is suitable for carrying out the radio link of setting up when calling out with the activation of described first access network with mobile radio station when the described mobile radio station that enters Microcell, and cell identifier is transferred to described mobile radio station, described identifier switch to described second access network so that activation can be called out from described first access network (10) at least one Microcell of described core network part (20) described second access network of sign (30), at least one base station (10) of described first access network is suitable for receiving the message that comprises described cell identifier from described mobile radio station, and sends described cell identifier to described core network part in the message that indication needs to switch.
2, network as claimed in claim 1 is characterized in that: described second access network (30) is suitable for sending the same cells identifier to enter all Microcells in described second access network mobile radio station.
3, as the network of claim 1 or 2, it is characterized in that: access point (301) is suitable for sending described cell identifier to described mobile radio station.
4, as the network of claim 1 or 2, it is characterized in that: access network controller (303) is suitable for sending described cell identifier to described mobile radio station.
5, as the network of any claim formerly, it is characterized in that: described access network controller (303) is suitable for receiving the handoff request that comprises described cell identifier from described core network part (20), switches with reference to giving described request and when set up described mobile radio station and the described core net communication path between partly when mobile radio station (1) receives the message that comprises described switching reference thereby distribute.
6, as the network of any claim formerly, it is characterized in that: described core network part (20) is regarded described cell identifier as the single subdistrict address.
7, as the network of any claim formerly, it is characterized in that: broadband packet-switched network (302) is provided for described a plurality of access points (301) are connected with described access network controller (303).
8, as the network of any claim formerly, it is characterized in that: at least one base station (10) of described first access network is suitable for notifying it triggering the ability of switching when described mobile radio station receives the message that comprises described cell identifier to mobile radio station.
9, as the network of any claim formerly, it is characterized in that: at least one base station (10) of described first access network comprises the memory of storing cell identifier list, this identifier has been identified to its handoff failure Microcell of pre-determined number, described base station (10) consult when receiving the message that comprises cell identifier that this memory and described cell identifier are comprised in the described memory then refusal switches if be further adapted for.
10, a kind ofly communicate by letter with the access network (10) of unlicensed radio mobile communications network (20) via the unlicensed radio interface, and the mobile radio station of communicating by letter with the non-permissive wireless switch-in network that is connected to described unlicensed radio mobile communications network (30) via non-unlicensed radio interface, when described mobile radio station (1) execution is called out with the activation of the radio access network of described permission, be suitable for receiving cell identifier from described non-permissive wireless switch-in network via described non-unlicensed radio interface, described identifier identifies at least one Microcell of described non-permissive wireless switch-in network (30) so that the calling that makes it possible to activate switches to described non-permissive wireless switch-in network from described permissive wireless switch-in network (10) to described core network part (20), and is suitable for sending described cell identifier to described permissive wireless switch-in network in handoff advice message.
11, the method that switch to the Microcell of the non-permissive wireless switch-in network that is connected to described public mobile network from public permission mobile network's sub-district is called out in a kind of activation that will carry out with mobile radio station, described public permission mobile network comprises the access part (10) that defines described sub-district and is connected to the described core network part (20) that inserts part, described non-permissive wireless switch-in network (30) comprises a plurality of access points (301), each access point has defined Microcell and has been suitable for communicating by letter with mobile radio station (1) via non-unlicensed radio interface, with the access network controller (303) that is suitable for partly communicating by letter with described access point and described public mobile network's core network, described method comprises:
Radio link between described non-permissive wireless switch-in network foundation and the mobile radio station, described mobile radio station are carried out and the activation calling of described permissive wireless switch-in network also is arranged in described Microcell,
Described non-permissive wireless switch-in network sends cell identifier to described mobile radio station, and described cell identifier partly identifies described at least Microcell as the Target cell that will switch to described core network,
Described unlicensed radio network receives the handoff advice message that comprises described cell identifier from described mobile radio station, and sends described cell identifier to described core network part in handoff request message.
12,, it is characterized in that following step as the method for claim 11:
Described core network part is associated described cell identifier with described access network controller, and sends handoff request message to described access network controller,
Described access network controller by produce to switch with reference to and described handoff parameter is used as handover acknowledge message sends described core network part (10) to and respond the handoff request message that partly receives from core network,
Described access network controller (303) receives described the switching with reference to also setting up the switching reference that responds described reception with the communication path of described mobile radio station via described home base stations (301) from described mobile radio station.
13, as the method for claim 12, it is characterized in that following step: all Microcells of single common cell identifier being distributed to described non-permissive wireless switch-in network.
14,, it is characterized in that following step as the method for claim 11 or 12:
Described permissive wireless switch-in network storage cell identifier, this identifier be identified to it handoff failure the Microcell of pre-determined number,
When mobile radio station receives handoff advice message, comprise the cell identifier of storage then refuse and switch if consult the cell identifier of described storage and described message.
15, as any one method in the claim 11 to 14, it is characterized in that following step:
It triggers the ability of switching to described permissive wireless switch-in network when described mobile radio station receives the handoff advice message that comprises described cell identifier to described mobile radio station knowledge.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2004/003367 WO2005099185A1 (en) | 2004-03-30 | 2004-03-30 | Mobile communication with unlicensed-radio access networks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1930828A true CN1930828A (en) | 2007-03-14 |
Family
ID=34957180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200480042662XA Pending CN1930828A (en) | 2004-03-30 | 2004-03-30 | Mobile communication with non-permissive wireless switch-in network |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070264996A1 (en) |
| EP (1) | EP1730900A1 (en) |
| CN (1) | CN1930828A (en) |
| WO (1) | WO2005099185A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20070264996A1 (en) | 2007-11-15 |
| EP1730900A1 (en) | 2006-12-13 |
| WO2005099185A1 (en) | 2005-10-20 |
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